Vibrator



FIG. 1 is a left, front perspective view of a vibrator with the ornamental design, with the right, front perspective view being a mirror image thereof;

FIG. 2 is a front side view of the vibrator of FIG. 1;

FIG. 3 is a rear side view of the vibrator of FIG. 1;

FIG. 4 is an enlarged top plan view of the vibrator of FIG. 1; and,

FIG. 5 is an enlarged bottom plan view of the vibrator of FIG. 1.

The areas shown within the broken lines represent portions of the vibrator, which form no part of the claimed design. 

CLAIM The ornamental design for a vibrator, as shown and described. 